20213013210103 has 4 divisors (see below), whose sum is σ = 23100586525840. Its totient is φ = 17325439894368.

The previous prime is 20213013210083. The next prime is 20213013210149. The reversal of 20213013210103 is 30101231031202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20213013210103 - 2⁹ = 20213013209591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213013211103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443786657858 + ... + 1443786657871.

It is an arithmetic number, because the mean of its divisors is an integer number (5775146631460).

Almost surely, 2^{20213013210103} is an apocalyptic number.

20213013210103 is a deficient number, since it is larger than the sum of its proper divisors (2887573315737).

20213013210103 is an equidigital number, since it uses as much as digits as its factorization.

20213013210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887573315736.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20213013210103 its reverse (30101231031202), we get a palindrome (50314244241305).

The spelling of 20213013210103 in words is "twenty trillion, two hundred thirteen billion, thirteen million, two hundred ten thousand, one hundred three".